Nailing machine



Jan. 4, 1927- w. J. MILLER NAILING MACHINE Jan. 4, 1927. n

W. J. MILLER NAILING MACHINE Filed'sept. 14, 192

4 sheets-sheets W. J. MILLER MAILING MACHINE Jan. 4, 1927.

' Filed Sept. 14, 1.925 4 Sheets-Sheet 4 Patented Jan. 4, 1927A Luanak wir rincer N.

WILLiAMJ. Minnen, 'on Lee-Anseeuw, inmune., .Assienencr Gunmen-.nn 'roenoneni E. cnnnn; onneefinsren'r, rumena.

iviiiciiiive,i/ificninn;A

Application filed September 14,1925.- serial No. 56,237.

character.

Another obgect'oi' the `invention is to pro` vide a device'of this cliai'acteiin Which a plurality of nails may heL simu taneously` Another object ottlie invention is to pro# videa deviceloit this character operativeby coinpressedfair. and in which the nails are individually and coneciitivelv-set in posi` tion and-held inthe" path'lof the driving elements:

With tl'ieseand other ohjeets Yin view 'the invention'consists in certain novel i eatures ot "construction vas hereinafter shown andl described and then Vspecdically pointed outL inthe clain'is, and in the drawings illus-i Figui'e i is a section-on-the line 1--41014 Figure 1;

Figure is-aii end elevation enlarged, o1' oneforin offth-e nail trap,i'ronithe dischargeend. 1

liligureis sect-ion ont-he line 6-6701 Figuref.

Figure 1.7 is ani-end elevation oit` the forni ofinaifl` trap shown in `Figure r 5, from .the operative end-2 Figure` is la planivieuT of the nail trap shown in Figures 5, 6` andl'V With-the nail conductorlfin,fsection=onthe line: '8 8 of Figure 15.`

liiz'g'urel 9` is Y avertical sectional detail, illustrating` the! construction and operation offplungei devices.-

Figure 10 is an enlarged sectionaldetail ottliedevice-tor holding the nail in the pat-h ot the'driving,` plunger.

Figure 11 is a transversesection on the line'11`-11 o'tFigure 10.l

Figure 12is a transveisesection onthe line12L-12OFigure 9.

I*`igiiiie'13r is a detail illustratinga modification'in the construction of the nail-trap,"

andpaitly in section.

ini- Y Figure le is a side view ofthe parts shown e155 in Figure 13. i

Figure 15 is a plan View, partlyini-seel tion, of the modified structure shown ineFig ures 13 and 14.

Figure 1G is a detached pei'spectiveviewfreo o1 the nail shifting `plate showninithezinodiv lied trap structure.

Figure 17 is a sectional',detailot'anotherw` u'ioeiiedl construction oit the nailatrapu Figure 18 is a side elevation ofethe parts 65 shewn in-Figure 1"?.

The improved device in the fori'nshovvnA in Figures 1, 2 and 9, includes. a supporting; base 10 secured by any suitable.:mean-sima.` support, toi' instance, by a hiacketsll;

Rigidly secured. at their. loweriends inthe hase l() are spaced guide rods 12am-1113,' the latter coupled at theiruppenen-dsr by an outwardiy curvingcross headlf.

Slidahly engaging the` rods; i12 and lfloyv' hearings 15 and 16 is a guidemeinten17, with. an intermediate half'hearing 18 andi cai-i193 to receive a cylindrical memberA 20 into which the compressed airis conducted'. Extending into the cylinder; 2O is atubularse ineinher 21 to the upperzendgof Whichgthe -hose .21:L is attached.

The. hearings 15 andl aieprovidedref-1 spectively with guide lugs 22 :andg23-tore` ceivenail trap operating-rods24fzandf2,f 85

Coiled springs 26 and 27,` respectively, surround the guide rods 12 andlihetW-een; the hearings 15 and 16 and the base plate.-10,.- Wliilel coiled springs. 28. and :29, respectively,r,iV surround the trap rods `2ea1id25.loetvveenfeo the guide lugs 22 and 23 andi` the:` crossy head 1li.I

Therods 2li and 25 are provi-dedfrespec#` ti'velyvvith stop nuts 30` and 31=ahoive-f`the lugs 22 and 23, and the rods extendloosely95 through the cross head 111!Y andsterniinate fin lateral heads 32 and 33, assliorwn, the object; thereof to loe hereinafter explained;

Coactiiig plungers 34 and 35 are connected at `their upper ends to` a head nieinher- 36,100 andiextending trointhe latter andiintoz tliel cylindrical ineniloer 20,. is a stud37 to .enable-` cylinder 20 and head 36 to loe'coupled. 'De-'- pending,` 'from the basel() are tubular zguideff ineinhers 38 and 39 for the plungers 34 105 and;

The receptacle for the'nails tovbek driven@` is represented as a. Whole at 410,/and isdi:`

and leiits, the description ot one will su'lticel for both.

The nail trap devices disclosed in Figures l to 8 comprise a cylindrical casing 45, open at one end and in which'a cylindrical body 46 is mounted ior rotation and provided with a stub shaft 47 extending through the closed end of the casing, the body 46 being V:formed with a plurality of outwardly opening nail receiving sockets 43.

Extending between 4each oiu the casings 45 and the nail holding` member 4G are guide chutes 49 and 50,.each chute opening inwardly or toward each other and closed at their outer edges, and the closed portions laterally enlarged as at 5l and 52 to receive the heads oi" the nails.

The container 40 is formed with passages at each side of the partition 4l, and indicated at 53 and 54 in Figure 3, the chute 49 communicating with the passage 53 and the chute 50 communicating` with the passage 54.

The casings are each formed with longitudinal passages 55 registering with the chutes 49 and 50.

The nails are disposed in the compartments formed by the partition 4l with the heads in the compartment at the lett all in one direction and adapted to consecutively enter the chute `49 with the heads adapted to engage in the enlargement 51, while the nails in the compartment at the right are arranged with their heads all in the opposite direction and adapted to enter the chute V with the heads adapted to engage in the enlargement 52.

The sockets 48 are adapted to consecutively register with the slots or passages of the casing as the member 46 is intermittently rotate-d.

-Mounted on Ieach ot the stubV shafts 47 is a ratchet device 56 having teeth 57 corresponding to the sockets 46.

`Mounted'to rotate on a collar on each of the ratchets 56 is a lever arm 53 to which the lower ends of the rods 24 and 25 are pivoted as shown. The lever arms are provided respectively with pawls 59 to engage the ratchet teeth.

Disposed in each of the chute devices 43 and 44 is a small stop, one ot' which is sho-wn atV 60, upon which the heads of the nails are caught as they fall from the socketed member 46, and the head ends held back While the pointed ends are carried down by gravity through the chutes 43 and 44 and automatically disposed in vertical position and thus conducted into the lower part of the members 33 and 39 and into the paths ot the plungers 34 and 35.

At their lower ends each of the members 33 and 39 is provided with a bearing disk 6l, and t'ormed in the Opposite sides of the members 33 and 39 are longitudinal slots 62. Pivoted at 63 in each slot are opposing nail supporting bars 64, the bars being spring supported at their lower ends as shown at 65 in Figures l() and l1, and thus normally maintained yieldably in relatively close relations at their lower ends. The confronting faces of the bars 64 are. formed with longitudinally directed sockets 66 in their lower portions, as shown,'to receive the lower or point portions ot the nails, the bars operative to automatically hold the nails in position in the path ot the` plungers while being driven.

In preparing the device for operation, the holder 40 is supplied with nails arranged with their heads pointing in opposite directions in the two compartments, as betore described, the nails in one compartment pass ing consecutively down the chutes 49 and 50 until the latter are lilled, with the lower-most nails in the sockets 48 of the members 46 which for the time being are uppermost. The device is disposed upon the material through which the nails are to be driven, indicated conventionally at 67. Compressed air is then admitted to the cylinder through the tube 2l and forces the cylinder and plungers 34 and 35 downwardly.

rIhe travel of the plunger is relatively long land the travel of the member 17 corresponds thereto, and at the iirst downward portion of the stroke, the lugs 22 and 23 moving with the member 17 releases the springs 23 and 29 which by their reaction press against the stop nuts 30 and 31 and move the trap rods 24 and 25 downward and cause them to actuate the arms 58 and set the pawls 59 over one of the teeth 57 ready to actuate the nail trip at the return stroke.

@ne nail is at all times disposed in the i socket 48 which tor the time being is uppermost, and another nail in the socket which 1Cor the time being is in the half-way located socket, and when the trap rods are actuated as above described, the nails which for the time being are in the hal-wayor intermediate position will be carried around and dropped into the chutes 43 and 44 and turned into vertical position by the stops 60 and deposited in the lower portions of the guide tubes 38 and 39 and into the paths of the descending plungers, and held in true vertical position by the coaction of the bars 64. i

When the plungers 34 and 35 have reached the-limitoftheir; downward stroke, orfhave clriventhe nails fully into theI members 67,"

the compressed-air `Willbc shut off,- fWhen the ready for the next operation'.

After the nailsv are* driven,` theadevice- -Will be moved to position'for thenextfdrive, and` soon as required.

The improvedAV device `is simple-"inf conL struction, 'can be inexpensively manufactured', :of "anyv 'required size and adapted 1 to drive nailsI ofvariousfsizes "and lengthsi segmental trip member' 69: 'Ivvo'ofA the casings 68 are shown, but as-theyw are -alike exi cept being rights and; lefts, the* description of: one -Vwillsuflice for both;

The casingV members 68 are rigidly sup. ported inany suitable manner and each prof vided With' a vertical stubV shaft 70 tol Which the segmental 'members 69 Vare attachedI and are movable back and forth Within the casings 6.8.' The casingsf68 are each/provided; with an intakeslot71 1n the .upper face comf--V munieating Witlrthe' conductor. members 49"' andO, asfindic'ated,to provide for the pas-1 sage of' the nails consecutively into 'the' cas-` ings. `Each of the"seginentalfcasings'GS is likewise provided With' `a discharge'slot'72y communicating respectively 'with' the chutes i3 and 111115 rThe intake slots/711'` and :discharge slots 72' do not register,V `asindicated `in Figure 151 The trip plate 69'is 'provided' With-a slot 7? extending Ventirely therethrough;` and adapted to register alternately `[Withtheslots 7l and 72. Y

Supported in any suitable 'manner is a rock Ashaft 74," and a bar75 isslidably-suqg)` portedJ as byga guide devioef76 between the'n lines of the-casings `68.

Attached toeach of the-stubshafts `1is` a lever arm l 77,4 land pivoted 'atA their ends respectively Eto the lever Varms 77 and the bar are rods 78.

A spring controlled rod 79 connects the lever arms 7 7 and operates to hold the segmental plates 69 yieldably in position to maint-ain the slots 7 3 in registration normally with the slots 71 of the casing, as in* dicated in Figure 15.

Extending from the rock shaft 74: is an arm 80 pivoted at 8l to the rods 78, so that the oscillation of the rock shaft Will transmit reciprocatory motion to the bar 75 and thence transmit oscillatory motion to the stub shafts 7 O and vibratory motion Vto the plates 69, and thus cause the slot 73 to be alternately alined with the slots 71 and 72.

Means are provided in the modified Structure for transmitting lthe motion of the rods i Qiand-'Q lto the-roch shaftt 7 4, Iand includes arms SQ'attaehed-Jto `the rockshaft 'and 1pivreaction ofthe springs-26,127 28 'andl 29,- will' restore the` parts lto Anormal position otedrv at v83 'in `loi-igitudinally directed slots,` oneofwvhi'ch-is shown at S4, in each ofi-the rods'aand 25, fthe slots 84C providingQffor. the necessaryflost motion betweenthe move ments` off'thesplungers andthe trap rods.y

Bythis arrangement the lowermost i nai/lsl 1 l in theconductors 119 and'iO will be deposited by gravity `in'theislotey 73 of theplates 69- an'drestupon the'lovver sideof thecasing` 687i riheiasftherods Qafand 25 aremoved* downwardly, asfdeseribedf hereinbefore, the

slotsrSiWillfpass voverthe pivots 83' Without cefiectingvthel rock shaft; butv at the last pore1 tionof lthereturnstroke, the flower end` of.` the Vslots Willjpiclr up the .arms 82v and actu- .i ate-the rock Ashaft "and causethe plates 69:y to be moved#laterally` and carry the :nails held inthe Aslots-73-i'nto positionto bel fed= by gravity-jthrough-the slots'72' and into the i vice is showngconsisting in forming the casing -681 in semi-circular iform, and increasing the throw 'offthe plate 69 l1fromi one Vfonrtlr to onehalfaofarevolution: i

The improved device cani bei :constructed Offany suitable materia-l and adapted with# out'materialist-ructural change to `receive and 1 drive (nails of various ,sizes-and' lengths, and? vill'V drive ttvovormore nails simultaneously.,

From theaforegoing-it is believed that t-hev construct-ion, operation andl advantages of the invention- =may lbei' lreadily understood by those skilledin the art,v and it is 'apparenty that changes may be made in the details disclosed Without departing from the spirit of the invention as expressed in the appended claims.

What is claimed and desired to be secured by LettersPatent is:

1. In a nailing machine, the combination with nail drivingmechanism including a cross head, of a nail box arranged at the lower end thereof, means'to feed nails to said nail box including a nail trap casing horizontally arranged, a vertical stub shaft extending into the casing, the said casing having a nail intake slot` through the top and a nail discharge slot through the bottom in communication with the said nail box, the said slots extending in different directions in different locations with respect to the top and bottom of the said casing, a movable nail carrying plate within the casing attached to the said stub shaft, the said plate having a slot through it arranged to register alternately with the said slots of the casing, and means including a trap rod operated by said cross head for operating f the stub shaft back and forth in the casing actuated by the said driving mechanism for operating the stub Shaft to move the plate horizontally bach and forth in the casing.

2. ln a nailing machine, the combination with nail 'driving mechanism including a cross heath of a nail box arranged at the lower end thereof, means to feed nails to said nail box including nail trap comprising a flat shallow casing horizontally disposed, a vertical stub shaft extending into the casing, the said casing having a nail intake slot through the top and a nail discharge slot through the bottom, a flat plate fitting the casing interiorly and movably and being attached to the said shaft, the said plate having a nail slot formed through it whereby When theshaftv is turned the plate is moved and the slot therein brought to register with vthe said slots m the casing separately, and

means for operating said plate including a trap rod operatively lconnected with said cross head.

3. In a nailing machine, the 'combination with nail driving mechanism including a cross head, of a nail box arranged at Vthe lower end thereof, means to feed nails to Said nail box including a nail trap compris-v ing a flat shallouT casing horizontally disposed, the said casing having sides converging, a vertical stub shaft extending into the casing-near the junction of the said converging sides, a. :ii-at nail carrying plate movable in the casing, said plate having tivo sides convergingly arranged, said plate being connected with the said shaft near the meeting point of the said sides, said plate having a nail slot through it, the top of the said casing having a nail intake slot and the bottom of the casing having a nail discharge Slot,

lower end thereof means to feed nails to said.

nail box including a nail trap comprising a lia-t shallowv casing horizontally disposed, the said casing having sides converging, a vertical stub shaft extending through the top into the casing near the junction of the said converging sides, the said casing having ak .nail intake slot tnough the top and a nail discharge slot through the bottom, one of theY said slots being located near one of the said converging sides of the casing and the other at a distance from the said side, a flat nail carrying plate movable in the casing, said plate having tivo converging sides, `said plate being connected with the said shaft near the junction of the said sides of the plate, the said plate having a nail slot through it arranged near one of the said being moved by the said shaft, the nail slot of the plate beingl constructed to register with the said intake and discharge slots of the casing at different times, and means to move saidshaft including a trap rod operated by said cross head.

5. ln a device of theclass described, a supporting base, guide rods extending from raid base, a guide member slidably engaging said rods and spring supported thereon and provided with a guide lug, a receptacle for nails, a `nail conductor leading from said receptacle, a trap device operative to intermittently feed the nails from the conductor into the path of the plunger, an operative rod for the trap device slidable through the .guide lug andv provided with a stop engageable with the guide lug, and a spring operating to actuate the trap operating rod.

ln testimony whereof l aflix my signature.

VILLIAM J. MILLER.

converging sides of the plate, the said plate 

